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Optoelectronics

Cavendish Laboratory, Cambridge

Studying at Cambridge

 

Dr Felix Deschler

Dr Felix Deschler

Winton Advanced Research Fellow

Herchel Smith Research Fellow

Fellow of Trinity Hall

Felix Deschler is accepting applications for PhD students.

Maxwell Centre, Office 1.74
Cavendish Laboratory
JJ Thomson Avenue
Cambridge CB3 0HE

Email:

Biography:

 

In September 2016, Felix was awarded a Winton Fellowship and will start his research group at the Cavendish Laboratory.

We will investigate the fundamental photo-physics of novel semiconductors with focus on the connection between material structure and optical properties.

Felix is looking for PhD students with interest in ultrafast laser spectroscopy, advanced optical microscopy or nano-fabrication.

 

Research Interests

I am interested in the photo-physics and recombination of excited states in novel semiconductor materials.

My current research explores how structure controls the radiative recombination yields of materials and how structure affects processes at interfaces between materials with different excited state properties.

We investigate these questions with ultra-fast laser spectroscopy, such as femtosecond transient absorption and transient photoluminescence. These techniques provide specialized tools to monitor the excited state populations in thin films and operating optoelectronic devices, which gives unique insights on the photo-physical mechanisms controlling material performance and device operation.

Key Publications

Pazos-Outón, L. M., Szumilo, M., Lamboll, R., Richter, J. M., Crespo-Quesada, M., Abdi-Jalebi, M., Beeson, H. J., Vrucinic, M., Alsari, M., Snaith, H. J., Ehrler, B., Friend, R. H. & Deschler, F. (2016). 'Photon recycling in lead-iodide perovskite solar cells.' Science. 351, 6280, 1430-1433

Richter, J, Abdi-Jalebi, M., Sadhanala, A., Rivett, J, Pazos-Outon, L., Deschler, F., Friend, R. H., (2016) ’Effect of photon recycling on external photoluminescence quantum yields in lead-halide perovskites’, Nature Communications, 7, 506–514

Price, M. B., Butkus, J., Jellicoe, T. C., Sadhanala, A., Briane, A., Halpert, J. E., Broch, K., Hodgkiss, J. M., Friend, R. H. & Deschler, F. (2015). 'Hot-carrier cooling and photoinduced refractive index changes in organic–inorganic lead halide perovskites.' Nat. Commun. 6, 8420

Vrućinić, M., Matthiesen, C., Sadhanala, A., Divitini, G., Cacovich, S., Dutton, S. E., Ducati, C., Atatüre, M., Snaith, H., Friend, R. H., Sirringhaus, H. & Deschler, F. (2015). 'Local Versus Long-Range Diffusion Effects of Photoexcited States on Radiative Recombination in Organic-Inorganic Lead Halide Perovskites.' Adv. Science. 2, 9

Deschler F., Price M., Pathak S., Klintberg L.E., Jarausch D.D., Higler R., Huttner S., Leijtens T., Stranks S.D., Snaith H.J., Atature M., Phillips R.T. and Friend R.H. (2014). "High Photoluminescence Efficiency and Optically Pumped Lasing in Solution-Processed Mixed Halide Perovskite Semiconductors." Journal of Physical Chemistry Letters 5(8): 1421-1426.

Tan Z.K., Moghaddam R.S., Lai M.L., Docampo P., Higler R., Deschler F., Price M., Sadhanala A., Pazos L.M., Credgington D., Hanusch F., Bein T., Snaith H.J. and Friend R.H. (2014). "Bright light-emitting diodes based on organometal halide perovskite." Nature Nanotechnology 9(9): 687-692.

Deschler F., Da Como E., Limmer T., Tautz R., Godde T., Bayer M., von Hauff E., Yilmaz S., Allard S., Scherf U. and Feldmann J. (2011). "Reduced Charge Transfer Exciton Recombination in Organic Semiconductor Heterojunctions by Molecular Doping." Physical Review Letters 107(12).